It's fascinating to think about how different the tone of the story would be if it had opened with this most recent arc (The three chapters of "Reminiscence" ), instead of with their day-to-day hijinks.
I like it better like this, I think, mind. First impressions of the duke as slightly brooding, alternating between sorrowfully optimistic and childishly crestfallen, were much more interesting for someone in his condition than the much more expected, wretchedly angry and sad state we find him in in the past.